Stainless Steel 1.4983
EN 1.4983
1.4983 (X6CrNiMoTiB17-13, S31635) is a titanium-stabilized, boron-modified 316Ti-type austenitic steel that provides improved creep and stress-rupture strength for service to about 650 °C.
Reference datasheet — 1.4983 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the AT condition
1.4983 tempers and conditions
1.4983 is supplied in 4 conditions, soft to hard. AT is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Forged + solution annealed (headers, flanges, bolting blanks) | Heavy-section forged components for high-temperature pressure parts, tested per VdTÜV creep requirements. | 250 | 570 | 38 | 165 HB | 2.3 % IACS |
ATDefault solution annealed (approx. 1050–1100 °C, rapid cooled) | Standard delivery condition for tube, plate and bar used in creep service; maximum ductility and corrosion resistance. | 265 | 590 | 40 | 170 HB | 2.3 % IACS |
+AT + stabilizing anneal | Choose when maximum immunity to intergranular corrosion after long hot service or heavy weld fabrication is required. | 280 | 590 | 38 | 175 HB | 2.3 % IACS |
Cold drawn | For bar stock and small-diameter tubing needing tighter tolerance, better surface and higher room-temperature strength. | 450 | 700 | 25 | 19 HRC | 2.3 % IACS |
Supply forms, finishes and certifications
Ways 1.4983 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA-TUBE | Bright annealed seamless tube | Supply form |
2B | Cold rolled, annealed, pickled, skin passed sheet | Surface finish |
What is 1.4983?
1.4983 (X6CrNiMoTiB17-13, S31635) is a titanium-stabilized, boron-modified 316Ti-type austenitic steel that provides improved creep and stress-rupture strength for service to about 650 °C. Conditions on file include solution annealed, annealed plus stabilized, cold drawn, 2B sheet, bright-annealed tube and forged-annealed, with default values of 265 MPa yield, 590 MPa tensile, 40 % elongation and 170 HB (88 HRB). Strength is modest for a heat-resistant grade, and the boron addition increases hot-cracking sensitivity during welding. Plain 316Ti is the fallback when elevated-temperature creep strength is not the driver. 1.4983 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,385°C (2,525 °F). 1.4983 has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 81% of stainless steel grades. Elongation at break is 40% and the elastic modulus is 200 GPa (29 Msi).
What is 1.4983 used for?
- superheater tubes
- pressure vessel components
- power plant piping
Advantages
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
- Forms and bends easily — 70/100, better than 79% of stainless steel grades
Limitations
- Low strength — 265 MPa (38.4 ksi), worse than 81% of stainless steel grades
1.4983 properties
Typical room-temperature values for 1.4983-AT; bars are the position among stainless steel grades.
Physical3
1.4983 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,385°C (2,525 °F).
Mechanical16
1.4983 has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 81% of stainless steel grades. Elongation at break is 40% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4983 is rated for continuous service to 650°C (1,202 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
1.4983 conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 73% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4983 takes about 57 MJ of energy and emits 4.6 kg of CO₂ — more than 62% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
1.4983's machinability is poor (33/100, worse than 57% of stainless steel grades); weldability good (65/100); formability very good (70/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 1.4983 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4983
Is 1.4983 easy to machine?
Machines like a gummy 316Ti — rigid setups, sharp positive-rake carbide, heavy flood coolant, low speed/high feed to avoid work hardening on Ti/B carbide inclusions.
Can 1.4983 be welded?
Weld with GTAW/GMAW/SMAW using Ti- or Nb-stabilized 318-type filler, low heat input and interpass under about 150 °C; the boron addition raises hot-cracking sensitivity, so avoid heavy restraint and wide weaves.
Can 1.4983 be formed, bent or molded?
Good cold formability in the annealed condition but high work-hardening rate; hot form at 1100–900 °C then solution anneal and rapid cool to restore creep properties.
1.4983 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| C | 0.04 – 0.08 | 0.06 |
| Si | ≤ 0.75 | 0.45 |
| Mn | ≤ 2 | 1.2 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Cr | 16 – 18 | 17 |
| Ni | 12 – 14.5 | 13 |
| Mo | 1.6 – 2 | 1.8 |
| Tistabilizing addition, typically ≥ 5×C | 0.3 – 0.6 | 0.45 |
| Bcreep-strengthening micro-addition characteristic of this grade | 0 – 0.01 | 0 |
| N | ≤ 0.03 | 0.02 |
| Fe | balance |
What surface finishes work on 1.4983?
Pickle and passivate after hot work or welding (ASTM A967); electropolishing or mechanical polishing works, though Ti carbonitride stringers limit true mirror quality — anodizing is not applicable.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 1.4983 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X6CrNiMoTiB17-13
- Similar grades
- S31635
How much does 1.4983 cost?
1.4983 is a high-cost stainless steel ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1.4983 — frequently asked
What is 1.4983 used for?
1.4983 is typically used for superheater tubes, pressure vessel components and power plant piping. In short: boron-modified 316Ti; 650 °C stress-rupture duty; bright-annealed tube available.
What is the yield strength of 1.4983?
1.4983 has a typical yield strength of 265 MPa (38.4 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 81% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is 1.4983 easy to machine?
Not especially — machinability is rated poor (33/100, worse than 57% of stainless steel grades). Machines like a gummy 316Ti — rigid setups, sharp positive-rake carbide, heavy flood coolant, low speed/high feed to avoid work hardening on Ti/B carbide inclusions.
Can 1.4983 be welded?
Yes — weldability is rated good (65/100). Weld with GTAW/GMAW/SMAW using Ti- or Nb-stabilized 318-type filler, low heat input and interpass under about 150 °C; the boron addition raises hot-cracking sensitivity, so avoid heavy restraint and wide weaves.
What surface finishes work on 1.4983?
Pickle and passivate after hot work or welding (ASTM A967); electropolishing or mechanical polishing works, though Ti carbonitride stringers limit true mirror quality — anodizing is not applicable.
Can 1.4983 be formed, bent or molded?
Good cold formability in the annealed condition but high work-hardening rate; hot form at 1100–900 °C then solution anneal and rapid cool to restore creep properties.
What is the maximum service temperature of 1.4983?
1.4983 is rated for continuous use to about 650°C (1,202 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4983-AT and 1.4983-CD?
AT is the default condition — standard delivery condition for tube, plate and bar used in creep service; maximum ductility and corrosion resistance. CD: for bar stock and small-diameter tubing needing tighter tolerance, better surface and higher room-temperature strength. Yield strength is 265 MPa in AT versus 450 MPa in CD.
How much does 1.4983 cost?
1.4983 is a high-cost stainless steel ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10302 — Creep resisting steels, nickel and cobalt alloys — CEN (2008)
- EN 10088-1 — Stainless steels: list of stainless steels — CEN (2014)
- VdTÜV Werkstoffblatt 432 — X6CrNiMoTiB17-13 (1.4983) — VdTÜV (2010)
- ASM Handbook Vol.1: Properties and Selection — Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.13B: Corrosion — Materials — ASM International (2005)
- Creep-resistant austenitic stainless tube grades (316Ti/1.4571, 1.4981, 1.4983) — European special steel producers (2020)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.